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Conference noted::atm

Title:atm
Moderator:NPSS::WATERS
Created:Mon Oct 05 1992
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:970
Total number of notes:3630

888.0. "DUnix4.0b/DECsafe/ATM/CELLplex7000" by MSAM03::CHIAWAISUN () Thu Apr 03 1997 04:23

    I'm thinking of proposing a solution for a customer which consists of
    the following:
    
    * AS4100/DUnix 4.0b
    * DECsafe
    * TruCluster/Memory Channel
    * ATMworks 350 NIC
    
    The above connects to a ATM switch:
    * 3Com Cellplex 7000
    
    Will this configuration work?
    Immediate questions:
    1. Does the ATMworks 350 interoperate with the Cellplex 7000?
    2. Does DECsafe/TruCluster work with ATM transport?
    3. Any other "gotchas"?
    
    
    Thanks,
    Wai-Sun Chia
    NSIS/MSA
    
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888.1SMURF::GREBUSDTN 381-1426 - Digital UnixThu Apr 03 1997 17:318
    I'm not aware of any problems interoperating with a CELLplex7000, but I
    can't find any information that we have actually tested with one.
    
    ATM can be used in a Truecluster system, but there is currently no
    support for failover of connections through ATM or of ATM adapters.
    
    	/gary
    
888.2yes, but ...DAIVC::IVANFri Apr 04 1997 01:3719
    > Interoperability?
    Yes. Two or three weeks ago I had a chance to test it with NPBU people.
    We used bricks demo. One 4100 as receiver. One alpha station 250 and 
    server 1000 as transmitter. Only one transmitter can go at one time
    and congestion was detected in 4100 (maybe because CELLplex does  not
    have good flow control like FLOWmaster). But, we did not do any
    tuning, so the choice is yours :-)
    
    > DECsafe/TruCluster?
    Don't know ...
    
    >Gotcha?
    On CELLplex side, you must set the port that goes to ATMworks to use
    ILMI 3.0, UNI 3.0, and autoconfiguration disabled.
    (please refer to 673.1)
    
    ivan sorano
    
    
888.3Failover can occur over MC, right?MSAM03::CHIAWAISUNFri Apr 04 1997 06:177
    Thanks Guys,
    OK, DECsafe/TruCluster will not be able to use ATM for failover
    transport, but it can use the Memory Channel as failover
    transport/cluster interconnect while making use of ATM as regular
    network interconnect, right?
    
    Wai Sun
888.4KITCHE::schottEric R. Schott USG Product ManagementWed Apr 16 1997 10:186
Hi

 Plans are for the next release of TruCluster Available Server
(decsafe) to support ATM.  It may be limited to LANE mode...for
more discussion of this, it might be done in the smurf::ase notes
file